Change pack
Lintel Jun 11 - 17 25 questions
PDF (questions) PDF (answers)

Monday 8 June 2026

Keystones #159 · Five questions · Open this day only

  1. 1. Number

    Calculate: 991 + 575

    Answer: 1566
  2. 2. Algebra

    Solve: 8x = 56

    Answer: x = 7
  3. 3. Geometry

    Calculate the perimeter of a right triangle with sides 8cm and 10cm

    Answer: 30.8cm
  4. 4. Ratio

    Simplify: 12:16:12

    Answer: 3:4:3
  5. 5. Statistics

    Find the range of: -10, 27, 41, -25, 15

    Answer: 66

Tuesday 9 June 2026

Keystones #160 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 44 + ? = 170

    Answer: 126
  2. 2. Algebra

    Find the next term: 1, 2, 4, 7, ...

    Answer: 11
  3. 3. Geometry

    Adjacent = 23cm, hypotenuse = 43cm. Find the angle

    Answer: 57.7°
  4. 4. Ratio

    Find 34% of 234

    Answer: 79.56
  5. 5. Statistics

    A bag has 3 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 3⁄11

Wednesday 10 June 2026

Keystones #161 · Five questions · Open this day only

  1. 1. Number

    Calculate: 755 + 565

    Answer: 755 + 565 = 1320
  2. 2. Algebra

    Solve: x⁄4 = 9.25

    Answer: x = 37
  3. 3. Geometry

    Opposite = 13cm, adjacent = 13cm. Calculate the angle

    Answer: 45°
  4. 4. Ratio

    Simplify: 4:6:10

    Answer: 2:3:5
  5. 5. Statistics

    A bag has 6 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 1⁄2

Thursday 11 June 2026

Keystones #162 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 102. What are the numbers?

    Answer: 33, 34, and 35
  2. 2. Algebra

    Solve: 4x = 48

    Answer: x = 12
  3. 3. Geometry

    Adjacent = 19cm, hypotenuse = 35cm. Find the angle

    Answer: 57.1°
  4. 4. Ratio

    Find 66% of 105

    Answer: 69.3
  5. 5. Statistics

    Find the range of: 25, -1, 23, 14, -15

    Answer: 40

Friday 12 June 2026

Keystones #163 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄8 + 4⁄5

    Answer: 31⁄20
  2. 2. Algebra

    Solve: 6x - 4 = 4x + 2

    Answer: x = 3
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 6cm and 10cm

    Answer: 30cm²
  4. 4. Ratio

    Simplify: 10:6:12

    Answer: 5:3:6
  5. 5. Statistics

    Find the range of: 44, 2, 0, 15, -28

    Answer: 72